Field Effect Mtn in on Inland Empire Paper ground (IEP). Permit is required I would recommend going to there web site and read all the info to access the property. I started the track from Spirit Lake Id.  The first 5 miles is paved then turns to dirt.  At the trail head if the gate is open you can drive in if the gate is closed you can’t.  The gate was closed so I had to take an ATV up close to the top then bushwhacked the rest of the way.  If the gates are closed they will let you access by hiking, ATV or motorcycle.  Great huckleberry picking spot. 

The GPS track is on the download page W7W/WE-015.